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Configuration Upgrade Fails due to "Exception: 'NoneType' object has no attribute 'get'."

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TitleConfiguration Upgrade Fails due to "Exception: 'NoneType' object has no attribute 'get'."
  • Configuration upgrade fails 
  • "Configuration Upgrade failed, Aborting the Process!"
  • Missing VNS configuration after upgrading from version to 
  • Wireless controller logs messages similar to the following:
Sep 11 18:53:45 WEST 2018 From: To: 
Sep 11 18:53:45 WEST 2018 C5210 Upgrading From Release 9_21 
Sep 11 18:55:15 WEST 2018 Successfully Restored the Internal Configuration 
C5210:ap:defaults:11n:radio1# n_chlwidth 40 
Exception: 'NoneType' object has no attribute 'get'. (file=/builds/Builds64/v1041_maint_10.41.09.0008/HWC_3rd_Party_Lib/toolchain/OpenEmbedded/1.8/x86_64-coresdk-linux/usr/lib/python2.7/site-packages/chantrysh/ function=execute) at /var/controller/images/bu_restore/rpm-upgrade-saved-configuration.cli(1) 
Sep 11 18:55:24 WEST 2018 Configuration Upgrade failed, Aborting the Process! Please contact your technical support

  • ExtremeWireless (formerly known as Identifi)
  • Software version
  • Software version and lower
Software incompatibility
Fix: Upgrade to 10.41.11 or higher
Additional notes
See also:  Release Note: wns0021051 - wns0021163 Improved configuration import logic for upgrades from 9.21.xx to 10.41.xx due to channel width setting not being preserved instead of halting import process.



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